High-precision laser welding machine

Abstract

The invention discloses a high-precision laser welding machine and relates to the technical field of welding machines, the high-precision laser welding machine comprises a base plate, first fixing pieces are welded to the two sides of the top of the base plate, and first sleeves are installed on the sides, close to each other, of the two first fixing pieces. Through cooperative use of the two telescopic mechanisms and the clamping mechanism, two sets of workpieces to be welded are clamped and fixed, the welding faces are attached, then through cooperative use of the transverse movement mechanism and the longitudinal movement mechanism, the top and the bottom of the edge of each welding face are welded, and the welding efficiency is improved. A driving gear is driven by the output end of an overturning motor to rotate, a transmission gear and a rotating cylinder are driven by a gear conveying belt to rotate as a whole, so that an air cooler faces downwards to rapidly cool a welded workpiece, a detection mechanism is arranged, the quality of a welded joint is detected, convenience and rapidness are achieved, and the working efficiency is improved. And the requirements of workers are met.

Description

Technical Field

[0001] The invention relates to the technical field of welding machines, and in particular to a high-precision laser welding machine. Background Art

[0002] Laser welding is an efficient and precise welding method that uses a high-energy-density laser beam as a heat source. It is one of the important aspects of the application of laser material processing technology. Due to the advantages of high efficiency and low cost, laser welding has gradually replaced the original manual welding, flame welding and other welding methods. The principle of laser welding can be divided into heat conduction welding and laser deep-melting welding. It has been widely used in aerospace, automobile manufacturing, medical and other fields.

[0003] A Chinese patent discloses a surface welding device for hardware processing and a method of using the same (CN201910696297.2). After two hardware plates are welded together, the quality of the weld may not be guaranteed. Therefore, the two welded hardware plates are prone to breakage at the weld position during subsequent use. The device in the above patent is not equipped with a detection mechanism to squeeze the welded hardware plates, which is not convenient for detecting the quality of the weld and is difficult to meet the needs of the staff. Summary of the invention

[0004] In order to solve the above technical problems, the technical solution adopted by the present invention is: A high-precision laser welding machine, comprising: A base plate, both sides of the top of the base plate are welded with first fixing members, the first sleeves are installed on the sides of the two groups of the first fixing members close to each other, the second sleeve, the third sleeve and the fourth sleeve are slidably connected inside the first sleeve, the outer end of the fourth sleeve is fixedly connected with a connecting member, the top rear side of the base plate is connected to the connecting frame through the second fixing member, the connecting frame is slidably connected with a supporting plate inside, and the front bottom end of the supporting plate is rotatably connected with a rotating cylinder; A telescopic mechanism, which is installed inside the first sleeve, the second sleeve, the third sleeve and the fourth sleeve, and is used to drive the connecting members on both sides to move closer to or away from each other; A clamping mechanism, wherein the clamping mechanism is installed on the connecting member; A lateral motion mechanism, which is installed inside the connection frame and connected to the support plate; A rotating mechanism, the rotating mechanism is mounted on the rotating cylinder and the supporting plate; A longitudinal motion mechanism, which is installed inside the rotating cylinder and connected to a mounting block, on which a welding assembly is provided; The detection mechanism is arranged on the top of the base plate and is used to detect the quality of the workpiece after welding.

[0005] In a preferred embodiment, the welding assembly includes a welding head. A cold air blower is installed at the top of the mounting block, and an electric push rod is fixedly connected to the bottom of the mounting block. The output end of the electric push rod is fixedly connected to the welding head. A fixing plate is welded to the left side of the mounting block, and a purification box and an air pump are installed at the top of the fixing plate. The input end of the air pump is communicated with a suction head through an air pipe, and the output end of the air pump is communicated with the purification box through an air pipe.

[0006] In a preferred embodiment, the telescopic mechanism includes a driving motor, a ball screw, a moving member and a telescopic member. The driving motor is fixedly installed on the inner wall of the first sleeve. A connecting plate is also fixedly connected to the inner wall of the first sleeve. One end of the ball screw is fixedly connected to the output end of the driving motor, and the other end of the ball screw is rotatably connected to the inside of the connecting plate. The moving member is threadedly connected to the outer surface of the ball screw.

[0007] In a preferred embodiment, a first fixed shaft is also fixedly connected to the inner wall of the first sleeve. The outer surface of the first fixed shaft is rotatably connected to a first rotating arm and a second rotating arm. A second fixed shaft is fixedly connected to the inner wall of the fourth sleeve. The outer surface of the second fixed shaft is rotatably connected to a third rotating arm and a fourth rotating arm. Both ends of one side of the telescopic member are respectively rotatably connected to the first rotating arm and the second rotating arm, and both ends of the other side of the telescopic member are respectively rotatably connected to the third rotating arm and the fourth rotating arm. The moving member is fixedly connected to the telescopic member. Limiting grooves are formed in both the second sleeve and the third sleeve. A limiting rod is arranged on the telescopic member, and the limiting rod is slidably matched with the limiting groove, and the limiting rod moves along the axial direction in the limiting groove.

[0008] In a preferred embodiment, the clamping mechanism includes a rotating shaft, a threaded rod, a first moving plate and a second moving plate. The outer side of the connecting member is rotatably connected to a rotating shaft through a bearing. The outer end of the rotating shaft is fixedly connected to the fixed frame. The threaded rod is rotatably connected to the inside of the fixed frame. The thread directions of the two ends of the threaded rod are opposite. The first moving plate and the second moving plate are respectively threadedly connected to both ends of the outer surface of the threaded rod. Clamping members are welded to the outer sides of the first moving plate and the second moving plate. A guide rail is also fixedly connected to the inside of the fixed frame. The first moving plate and the second moving plate are both slidably connected to the outer surface of the guide rail. The fixed frame is connected to a first stepping motor. The output end of the first stepping motor extends into the fixed frame and is fixedly connected to one end of the threaded rod.

[0009] In a preferred solution, the top ends of the first movable plate and the second movable plate are fixedly connected to the fixed block through several groups of second fixed rods, the fixed block is rotatably connected with a rotating rod inside, the bottom end of the fixed block is fixedly installed with an adjustment motor, the bottom end of the rotating rod is fixedly connected to the output end of the adjustment motor, and the top end of the outer surface of the rotating rod is fixedly connected with a mounting piece, the top of the mounting piece is fixedly installed with a cylinder, the output end of the cylinder passes through the top wall of the mounting piece and is fixedly installed with a clamping plate, a rubber pad is provided at the bottom of the clamping plate, and a motor is installed inside one group of the connecting pieces, and the output end of the motor is fixedly connected to one group of rotating shafts.

[0010] In a preferred solution, the lateral movement mechanism includes a first gear and a second gear, the first gear and the second gear are respectively rotatably connected to the inner sides of the connecting frame, the first gear is connected to the second gear through a chain, the support plate is fixedly connected to the outer surface of the chain, a second stepper motor is fixedly installed at a position near the right side of the top of the connecting frame, one end of the first gear is fixedly connected to the output end of the second stepper motor, and baffles are welded at left and right symmetrical positions inside the connecting frame, a notch is penetrated on the baffle for the chain to pass through, a slide groove is provided on the front side of the connecting frame, a slider matched with the slide groove is fixedly connected to the support plate, and the slider is slidably connected to the inside of the slide groove.

[0011] In a preferred embodiment, the rotating mechanism includes a driving gear, which is rotatably connected to the front top of the support plate, a transmission gear is fixedly installed on the outer surface of the rotating cylinder, the driving gear is transmission-connected to the transmission gear through a gear conveyor belt, and a flip motor is installed on the back of the support plate, the flip motor is fixedly installed on the back of the support plate, and its output end passes through the support plate and is fixedly connected to the middle of the driving gear.

[0012] In a preferred embodiment, the longitudinal movement mechanism includes a transmission screw and a guide rod, the transmission screw is rotatably connected to one side of the interior of the rotating cylinder, and the guide rod is fixedly connected to the other side of the interior of the rotating cylinder, the mounting block is threadedly connected to the outer surface of the transmission screw, and the mounting block is slidably connected to the outer surface of the guide rod, and a third stepper motor is installed on the rotating cylinder, and the output end of the third stepper motor passes through the side wall of the rotating cylinder and is connected to one end of the transmission screw.

[0013] In a preferred scheme, the detection mechanism includes a first frame, the first frame is welded to the top of the substrate, the first frame is rotatably connected to a longitudinal screw inside, the outer surface of the longitudinal screw is threadedly connected to the second frame, the second frame is slidably connected to the first connecting rod, and the first connecting rod is fixedly connected to the inside of the first frame, the outer end of the longitudinal screw is fixedly connected to the output end of a fourth stepper motor, the fourth stepper motor is installed on the outside of the first frame, the second frame is fixedly installed with a fifth stepper motor, the output end of the fifth stepper motor is fixedly installed with a transverse screw, the transverse screw is threadedly connected with a mounting plate, a second connecting rod is also installed inside the second frame, the mounting plate is slidably connected to the second connecting rod, an electric lifting rod is arranged on the top of the mounting plate, and the output end of the electric lifting rod is fixedly connected to a detection head.

[0014] Compared with the prior art, the present invention provides a high-precision laser welding machine, which has the following beneficial effects: First, the present invention realizes the precise positioning of the workpiece and the fitting of the welding surface through the coordinated design of multi-directional linkage clamping and telescopic mechanism. The clamping mechanism is combined with a bidirectional threaded rod to drive the clamping parts to move synchronously, and the multi-layer sleeve of the telescopic mechanism is linked to unfold, which can meet the fixing requirements of workpieces of different sizes. At the same time, the clamping plate ensures that the workpiece remains stable during the welding process through rotation adjustment and vertical clamping functions, effectively improving the welding accuracy and clamping reliability.

[0015] Second, the present invention adopts lateral, longitudinal and rotational composite motion control to achieve all-round welding and dynamic cooling. The lateral motion mechanism drives the welding assembly to move horizontally through the gear chain transmission, the longitudinal mechanism uses the screw guide to adjust the welding height, and cooperates with the rotation mechanism to drive the air cooler to flip and directional air supply. This multi-dimensional motion coordination allows the welding head to cover the top, bottom and edge areas of the workpiece, while the cold air can quickly cool down the high-temperature area, taking into account both welding integrity and processing efficiency.

[0016] Third, the invention innovatively designs an adjustable clamping mechanism and a workpiece flipping function. The clamping assembly is driven by a motor to achieve multi-angle rotation adjustment, so that the workpiece can be flipped as a whole through the rotating shaft after welding, and the workpiece can be repositioned with the telescopic mechanism. This design not only solves the operational limitations of traditional equipment on complex welding surfaces, but also can complete double-sided welding in the same tooling, reducing repeated clamping links and significantly improving the continuity of the processing flow.

[0017] Fourth, the present invention integrates an automated detection module to achieve closed-loop control of weld quality. The detection mechanism drives the detection head to move three-dimensionally through a dual-axis drive system, and combines the lifting and impact functions to simulate the stress state under actual working conditions. The device can verify the strength of the weld immediately after welding is completed, and promptly identify defects such as cold welding and misalignment, forming an integrated process from processing to quality inspection, reducing the cost of manual inspection and enhancing quality control capabilities. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 For the present invention Figure 1 Schematic diagram of the proposed enlarged structure at A; Figure 3 It is a structural schematic diagram of the detection mechanism in the present invention; Figure 4 It is a structural schematic diagram of the connection frame in the present invention; Figure 5 It is a structural schematic diagram of the clamping mechanism in the present invention; Figure 6 It is a schematic diagram of the structure of the mounting member in the present invention; Figure 7 It is a structural schematic diagram of the lateral motion mechanism in the present invention; Figure 8 For the present invention Figure 7 Schematic diagram of the proposed enlarged structure at B; Fig. 9 It is a structural schematic diagram of the rotating mechanism in the present invention; Fig.10 It is a structural schematic diagram of the longitudinal motion mechanism in the present invention; Fig.11 It is a schematic diagram of the structure of the welding head and the cooling fan in the present invention; Fig.12 It is a schematic diagram of the structure of the first sleeve, the second sleeve, the third sleeve and the fourth sleeve in the present invention; Fig.13 For the present invention Fig.12 Schematic diagram of the proposed enlarged structure at location C.

[0019] The numbers in the figure are: 1. Base plate; 101. First fixing member; 102. First sleeve; 103. Second sleeve; 104. Third sleeve; 105. Fourth sleeve; 106. Connector; 107. Second fixing member; 108. Connecting frame; 109. Support plate; 110. Rotating cylinder; 111. Mounting block; 112. Fixing plate; 113. Electric push rod; 114. Welding head; 115. Air cooler; 116. Purification box; 117. Air pump; 118. Air suction head; 2. Telescopic mechanism; 201. Transmission motor; 202. Ball screw; 203. Connecting plate; 204. First rotating arm; 205. Second rotating arm; 206. Moving member; 207. Third rotating arm; 208. Fourth rotating arm; 209. Telescopic member; 210. Limiting groove; 211. Limiting rod; 3. Clamping mechanism; 301. Rotating shaft; 302. Fixed frame; 303. Threaded rod; 304. Guide rail; 305. First movable plate; 306. Second movable plate; 307. Clamping member; 308. First stepper motor; 309. Second fixed rod; 310. Fixed block; 311. Rotating rod; 312. Adjusting motor; 313. Mounting member; 314. Cylinder; 315. Pressing plate; 316. Motor; 4. lateral motion mechanism; 401. first gear; 402. second gear; 403. chain; 404. second stepping motor; 405. baffle; 406. slideway; 407. slider; 5. Rotating mechanism; 501. Driving gear; 502. Transmission gear; 503. Gear conveyor belt; 504. Turning motor; 6. Longitudinal motion mechanism; 601. Transmission screw; 602. Guide rod; 603. Third stepping motor; 7. Detection mechanism; 701. First frame; 702. Longitudinal screw; 703. First connecting rod; 704. Fourth stepper motor; 705. Second frame; 706. Transverse screw; 707. Second connecting rod; 708. Fifth stepper motor; 709. Mounting plate; 710. Electric lifting rod; 711. Detection head. DETAILED DESCRIPTION

[0020] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are only examples, and those skilled in the art may think of other obvious variations.

[0021] Example 1, please refer to Figure 1-Figure 13 As shown, a high-precision laser welding machine comprises: Base plate 1, both sides of the top of the base plate 1 are welded with first fixing members 101, the first sleeve 102 is installed on the side where the two groups of first fixing members 101 are close to each other, the second sleeve 103, the third sleeve 104 and the fourth sleeve 105 are slidably connected inside the first sleeve 102, the outer end of the fourth sleeve 105 is fixedly connected with a connecting member 106, the top rear side of the base plate 1 is connected to a connecting frame 108 through a second fixing member 107, the inside of the connecting frame 108 is slidably connected with a supporting plate 109, and the front bottom end of the supporting plate 109 is rotatably connected with a rotating cylinder 110; The telescopic mechanism 2 is installed inside the first sleeve 102, the second sleeve 103, the third sleeve 104 and the fourth sleeve 105, and is used to drive the connecting members 106 on both sides to move closer to or away from each other; A clamping mechanism 3, which is mounted on the connecting member 106 and is used to clamp the workpiece; A lateral motion mechanism 4, which is installed inside the connection frame 108 and connected to the support plate 109; Rotating mechanism 5, the rotating mechanism 5 is mounted on the rotating cylinder 110 and the supporting plate 109; A longitudinal movement mechanism 6, which is installed inside the rotating cylinder 110 and connected to a mounting block 111, on which a welding assembly is provided; The detection mechanism 7 is arranged on the top of the substrate 1 and is used to detect the quality of the workpiece after welding.

[0022] Please refer to Fig.11 As shown, the welding assembly includes a welding head 114, a cooling fan 115 is installed on the top of the mounting block 111, and an electric push rod 113 is fixedly connected to the bottom of the mounting block 111, the output end of the electric push rod 113 is fixedly connected to the welding head 114, and a fixing plate 112 is welded on the left side of the mounting block 111, a purification box 116 and an air pump 117 are installed on the top of the fixing plate 112, the input end of the air pump 117 is connected to the suction head 118 through an air pipe, and the output end of the air pump 117 is connected to the purification box 116 through an air pipe.

[0023] Example 2, please refer to Fig.12 and Fig.13 As shown, the telescopic mechanism 2 includes a transmission motor 201, a ball screw 202, a moving part 206 and a telescopic part 209. The transmission motor 201 is fixedly mounted on the inner wall of the first sleeve 102. The inner wall of the first sleeve 102 is also fixedly connected with a connecting plate 203. One end of the ball screw 202 is fixedly connected to the output end of the transmission motor 201, and the other end of the ball screw 202 is rotatably connected to the inside of the connecting plate 203. The moving part 206 is threadedly connected to the outer surface of the ball screw 202.

[0024] Please refer to Fig.12 and Fig.13As shown, the inner wall of the first sleeve 102 is also fixedly connected to the first fixed shaft, the outer surface of the first fixed shaft is rotatably connected to the first rotating arm 204 and the second rotating arm 205, and the inner wall of the fourth sleeve 105 is fixedly connected to the second fixed shaft, the outer surface of the second fixed shaft is rotatably connected to the third rotating arm 207 and the fourth rotating arm 208, the two ends of one side of the telescopic member 209 are rotatably connected to the first rotating arm 204 and the second rotating arm 205 respectively, and the two ends of the other side of the telescopic member 209 are rotatably connected to the third rotating arm 207 and the fourth rotating arm 208 respectively, the moving member 206 is fixedly connected to the telescopic member 209, and the second sleeve 103 and the third sleeve 104 are both provided with a limiting groove 210, the telescopic member 209 is provided with a limiting rod 211, and the limiting rod 211 is slidably connected to the inside of the limiting groove 210.

[0025] Those skilled in the art can understand that, by driving the ball screw 202 to rotate through the output end of the transmission motor 201, the movable part 206 moves left and right, driving the telescopic part 409 to be in an extended or retracted state. When the telescopic part 409 is in the extended state, the second sleeve 103, the third sleeve 104 and the fourth sleeve 105 are all driven to slide out from the interior of the first sleeve 102; when the telescopic part 409 is in the retracted state, the second sleeve 103, the third sleeve 104 and the fourth sleeve 105 are all driven to retract into the interior of the first sleeve 102. Through this arrangement, the clamping mechanisms 3 on both sides can be driven to approach or move away from each other.

[0026] Example 3, please refer to Figure 5 and Figure 6 As shown, the clamping mechanism 3 includes a rotating shaft 301, a threaded rod 303, a first movable plate 305 and a second movable plate 306. The outer side of the connecting member 106 is rotatably connected to the rotating shaft 301 through a bearing. The outer end of the rotating shaft 301 is fixedly connected to the fixed frame 302. The threaded rod 303 is rotatably connected to the inside of the fixed frame 302. The threads opened at both ends of the threaded rod 303 have opposite rotation directions, and the first movable plate 305 and the second movable plate 306 are respectively threadedly connected to the two ends of the outer surface of the threaded rod 303. The outer sides of the first movable plate 305 and the second movable plate 306 are both welded with clamping members 307. The inside of the fixed frame 302 is also fixedly connected to the guide rail 304. The first movable plate 305 and the second movable plate 306 are both slidably connected to the outer surface of the guide rail 304. The outer side of the fixed frame 302 is installed with a first stepper motor 308. The output end of the first stepper motor 308 extends to the inside of the fixed frame 302 and is fixedly connected to one end of the threaded rod 303.

[0027] Please refer to Figure 5 and Figure 6As shown, the top ends of the first movable plate 305 and the second movable plate 306 are fixedly connected to the fixed block 310 through several groups of second fixed rods 309, the fixed block 310 is internally rotatably connected with a rotating rod 311, the bottom end of the fixed block 310 is fixedly installed with an adjustment motor 312, the bottom end of the rotating rod 311 is fixedly connected to the output end of the adjustment motor 312, and the top end of the outer surface of the rotating rod 311 is fixedly connected with a mounting member 313, the top of the mounting member 313 is fixedly installed with a cylinder 314, the output end of the cylinder 314 passes through the top wall of the mounting member 313, and is fixedly installed with a clamping plate 315, a rubber pad is provided at the bottom of the clamping plate 315, and a motor 316 is installed inside one of the groups of connecting members 106, and the output end of the motor 316 is fixedly connected to one of the groups of rotating shafts 301.

[0028] Those skilled in the art can understand that, by driving the threaded rod 303 to rotate through the output end of the first stepper motor 308, the first movable plate 305 and the second movable plate 306 are moved closer to or farther away from each other, thereby changing the spacing between the two groups of clamping members 307, and by adjusting the output end of the motor 312 to drive the mounting member 313 to rotate, the clamping plate 315 is located directly above the two corners of the workpiece, and then the clamping plate 315 is driven downward by the output end of the cylinder 314 to clamp the two corners of the workpiece; and since the clamping mechanism 3 is provided on both sides, the two groups of workpieces can be clamped separately.

[0029] Example 4, please refer to Figure 7 and Figure 8 As shown, the lateral movement mechanism 4 includes a first gear 401 and a second gear 402, and the first gear 401 and the second gear 402 are rotatably connected to the inner sides of the connection frame 108 respectively. The first gear 401 is transmission-connected to the second gear 402 through a chain 403, and the support plate 109 is fixedly connected to the outer surface of the chain 403. A second stepper motor 404 is fixedly installed at a position near the right side of the top of the connection frame 108, one end of the first gear 401 is fixedly connected to the output end of the second stepper motor 404, and baffles 405 are welded at left-right symmetrical positions inside the connection frame 108, and a notch for the chain 403 to pass through is opened on the baffle 405, and a slide groove 406 is opened on the front side of the connection frame 108, and a slider 407 adapted to the slide groove 406 is fixedly connected to the support plate 109, and the slider 407 is slidably connected to the inside of the slide groove 406.

[0030] Those skilled in the art can understand that the output end of the second stepping motor 404 drives the first gear 401 to rotate, causing the chain 403 to drive, and then the support plate 109 can reciprocate horizontally, thereby changing the position of the welding head 114 in the horizontal direction. And by providing two groups of baffles 405, the support plate 109 can always move between the two groups of baffles 405. In addition, the cooperation of the chute 406 and the slider 407 is used to improve the stability of the movement of the support plate 109.

[0031] Example 5, please refer to Fig. 9 As shown in the figure, the rotating mechanism 5 includes a driving gear 501, the driving gear 501 is rotatably connected to the front top end of the support plate 109, a transmission gear 502 is fixedly installed on the outer surface of the rotating cylinder 110, the driving gear 501 is in transmission connection with the transmission gear 502 through a gear conveyor belt 503, and a turning motor 504 is installed on the back of the support plate 109. The middle part of the outer side of the driving gear 501 is fixedly connected to the output end of the turning motor 504.

[0032] Those skilled in the art can understand that the output end of the turning motor 504 drives the driving gear 501 to rotate. Driven by the gear conveyor belt 503, the transmission gear 502 and the rotating cylinder 110 as a whole rotate, so that the cold air blower 115 faces downward to quickly cool the welded workpiece.

[0033] Example 6, please refer to Fig.10 As shown in the figure, the longitudinal movement mechanism 6 includes a transmission lead screw 601 and a guide rod 602. The transmission lead screw 601 is rotatably connected to one side inside the rotating cylinder 110, and the other side inside the rotating cylinder 110 is fixedly connected with a guide rod 602. The mounting block 111 is threadedly connected to the outer surface of the transmission lead screw 601, and the mounting block 111 is slidably connected to the outer surface of the guide rod 602. One end of the transmission lead screw 601 is fixedly connected to the output end of the third stepping motor 603, and the third stepping motor 603 is fixedly connected to the rotating cylinder 110.

[0034] Those skilled in the art can understand that the output end of the third stepping motor 603 drives the transmission lead screw 601 to rotate, causing the mounting block 111 to reciprocally slide along the outer surface of the guide rod 602, thereby changing the position of the welding head 114 in the longitudinal direction.

[0035] Example 7, please refer to Figure 3As shown, the detection mechanism 7 includes a first frame 701, which is welded to the top of the substrate 1. A longitudinal screw 702 is rotatably connected inside the first frame 701, and a second frame 705 is threadedly connected to the outer surface of the longitudinal screw 702. The second frame 705 is slidably connected to the first connecting rod 703, and the first connecting rod 703 is fixedly connected to the inside of the first frame 701. The outer end of the longitudinal screw 702 is fixedly connected to the output end of the fourth stepper motor 704, and the fourth stepper motor 704 is installed on the outside of the first frame 701. A fifth stepper motor 708 is fixedly installed on the inner wall of the second frame 705, and a transverse screw 706 is fixedly installed on the output end of the fifth stepper motor 708. A mounting plate 709 is threadedly connected to the transverse screw 706. A second connecting rod 707 is also installed inside the second frame 705, and the mounting plate 709 is slidably connected to the second connecting rod 707. An electric lifting rod 710 is arranged on the top of the mounting plate 709, and a detection head 711 is fixedly connected to the output end of the electric lifting rod 710.

[0036] Those skilled in the art can understand that, with the cooperation of the output end of the fourth stepper motor 704 and the output end of the fifth stepper motor 708 , the detection head 711 can move in both the horizontal and vertical directions, thereby changing the position of the detection head 711 .

[0037] Working principle and use process of this device: In order to clearly describe the working principle of the present invention, we use Figure 1 To elaborate on the perspective; First, the output end of the first stepper motor 308 drives the threaded rod 303 to rotate, so that the first movable plate 305 and the second movable plate 306 are moved closer to or farther from each other, thereby changing the distance between the two groups of clamping members 307. The output end of the adjustment motor 312 drives the mounting member 313 to rotate, so that the clamping plate 315 is located directly above the two corners of the workpiece. Then, the output end of the cylinder 314 drives the clamping plate 315 to move downward to clamp the two corners of the workpiece. Since the clamping mechanisms 3 are provided on both sides, the two groups of workpieces can be clamped respectively. Secondly, the ball screw 202 is driven to rotate by the output ends of the transmission motors 201 on both sides, so that the telescopic members 409 on both sides are in an extended state, driving the second sleeve 103, the third sleeve 104 and the fourth sleeve 105 to slide out from the inside of the first sleeve 102, thereby driving the clamping mechanisms 3 on both sides and the two groups of workpieces clamped therein to approach each other, so that the welding surfaces of the two groups of workpieces are fitted together; Next, the welding head 114 welds the top edge of the welding surface through the cooperation of the lateral motion mechanism 4 and the longitudinal motion mechanism 6, and then the output end of the motor 316 drives the two sets of workpieces after one welding to rotate synchronously and flip them so that the bottom of the unwelded edge faces upward, and the welding operation is repeated to complete the second welding; Finally, the clamping mechanism 3 on the left side is released, the telescopic mechanism 2 on the left side is reset, the clamping mechanism 3 on the right side remains clamped, and the telescopic mechanism 2 on the right side is in an extended state. The detection head 711 is driven by the detection mechanism 7 to move to the bottom left side of the workpiece after welding, and the detection head 711 is driven upward by the output end of the electric lifting rod 710 to hit the bottom left side of the workpiece after welding for observation. Afterwards, the clamping mechanism 3 on the right side is released, the telescopic mechanism 2 on the right side is reset, the clamping mechanism 3 on the left side remains clamped, and the telescopic mechanism 2 on the left side is in an extended state. The detection head 711 is driven by the detection mechanism 7 to move to the bottom right side of the workpiece after welding, and the detection head 711 is driven upward by the output end of the electric lifting rod 710 to hit the bottom right side of the workpiece after welding for observation, thereby realizing the detection of the quality of the weld.

[0038] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments, and the above embodiments and descriptions only describe the principles of the present invention. The present invention may be subject to various changes and improvements without departing from the spirit and scope of the present invention, and these changes and improvements fall within the scope of the present invention claimed.

Claims

1. A high-precision laser welding machine, characterized in that: include: A base plate (1), wherein first fixing members (101) are welded to both sides of the top of the base plate (1), first sleeves (102) are installed on the sides of two groups of the first fixing members (101) close to each other, the first sleeve (102) is slidably connected to the inside of the second sleeve (103), the third sleeve (104) and the fourth sleeve (105), the outer end of the fourth sleeve (105) is fixedly connected to a connecting member (106), the top rear side of the base plate (1) is connected to a connecting frame (108) via a second fixing member (107), the inside of the connecting frame (108) is slidably connected to a supporting plate (109), and the front bottom end of the supporting plate (109) is rotatably connected to a rotating cylinder (110); a telescopic mechanism (2), the telescopic mechanism (2) being installed inside the first sleeve (102), the second sleeve (103), the third sleeve (104) and the fourth sleeve (105), and being used to drive the connecting pieces (106) on both sides to move closer to or farther away from each other; A clamping mechanism (3), wherein the clamping mechanism (3) is mounted on the connecting member (106); A lateral motion mechanism (4), the lateral motion mechanism (4) being installed inside the connection frame (108) and connected to the support plate (109); A rotating mechanism (5), the rotating mechanism (5) being mounted on the rotating cylinder (110) and the supporting plate (109); A longitudinal motion mechanism (6), the longitudinal motion mechanism (6) being mounted inside the rotating cylinder (110) and connected to a mounting block (111), wherein a welding assembly is provided on the mounting block (111); A detection mechanism (7) is arranged on the top of the base plate (1) and is used to detect the quality of the workpiece after welding.

2. A high-precision laser welding machine according to claim 1, characterized in that: The welding assembly comprises a welding head (114), a cooling fan (115) is installed on the top of the mounting block (111), and an electric push rod (113) is fixedly connected to the bottom of the mounting block (111), the output end of the electric push rod (113) is fixedly connected to the welding head (114), and a fixing plate (112) is welded on the left side of the mounting block (111), a purification box (116) and an air pump (117) are installed on the top of the fixing plate (112), the input end of the air pump (117) is connected to the suction head (118) through an air pipe, and the output end of the air pump (117) is connected to the purification box (116) through the air pipe.

3. A high-precision laser welding machine according to claim 1, characterized in that: The telescopic mechanism (2) comprises a transmission motor (201), a ball screw (202), a moving part (206) and a telescopic part (209); the transmission motor (201) is fixedly mounted on the inner wall of a first sleeve (102); the inner wall of the first sleeve (102) is also fixedly connected to a connecting plate (203); one end of the ball screw (202) is fixedly connected to the output end of the transmission motor (201); the other end of the ball screw (202) is rotatably connected to the inside of the connecting plate (203); and the moving part (206) is threadedly connected to the outer surface of the ball screw (202).

4. A high-precision laser welding machine according to claim 3, characterized in that: The inner wall of the first sleeve (102) is also fixedly connected to a first fixed shaft, the outer surface of the first fixed shaft is rotatably connected to a first rotating arm (204) and a second rotating arm (205), and the inner wall of the fourth sleeve (105) is fixedly connected to a second fixed shaft, the outer surface of the second fixed shaft is rotatably connected to a third rotating arm (207) and a fourth rotating arm (208), one end of one side of the telescopic member (209) is rotatably connected to the first rotating arm (204) and the second rotating arm (205), respectively, and the The other two ends of the telescopic member (209) are rotatably connected to the third rotating arm (207) and the fourth rotating arm (208), respectively; the movable member (206) is fixedly connected to the telescopic member (209); and the second sleeve (103) and the third sleeve (104) are both provided with a limiting groove (210); a limiting rod (211) is provided on the telescopic member (209); the limiting rod (211) is slidably matched with the limiting groove (210); and the limiting rod (211) moves in the limiting groove (210) along the axial direction.

5. The high-precision laser welding machine according to claim 1, characterized in that: The clamping mechanism (3) comprises a rotating shaft (301), a threaded rod (303), a first movable plate (305) and a second movable plate (306); the outer side of the connecting member (106) is rotatably connected to the rotating shaft (301) via a bearing; the outer end of the rotating shaft (301) is fixedly connected to a fixed frame (302); the threaded rod (303) is rotatably connected to the inside of the fixed frame (302); the threads at both ends of the threaded rod (303) are in opposite directions of rotation; and the first movable plate (305) and the second movable plate (306) are respectively threadedly connected to the threaded rod (3 03) at both ends of the outer surface, the outer sides of the first movable plate (305) and the second movable plate (306) are welded with clamping parts (307), the interior of the fixed frame (302) is also fixedly connected to a guide rail (304), the first movable plate (305) and the second movable plate (306) are slidably connected to the outer surface of the guide rail (304), the fixed frame (302) is connected to a first stepper motor (308), the output end of the first stepper motor (308) extends to the interior of the fixed frame (302) and is fixedly connected to one end of the threaded rod (303).

6. A high-precision laser welding machine according to claim 5, characterized in that: The top ends of the first movable plate (305) and the second movable plate (306) are fixedly connected to the fixed block (310) via a plurality of groups of second fixed rods (309); a rotating rod (311) is rotatably connected inside the fixed block (310); an adjustment motor (312) is fixedly mounted on the bottom end of the fixed block (310); the bottom end of the rotating rod (311) is fixedly connected to the output end of the adjustment motor (312); a mounting member (313) is fixedly connected to the top end of the outer surface of the rotating rod (311); a cylinder (314) is fixedly mounted on the top of the mounting member (313); the output end of the cylinder (314) passes through the top wall of the mounting member (313) and is fixedly mounted with a clamping plate (315); a rubber pad is provided at the bottom of the clamping plate (315); a motor (316) is mounted inside one group of the connecting members (106); the output end of the motor (316) is fixedly connected to one group of the rotating shafts (301).

7. The high-precision laser welding machine according to claim 1, characterized in that: The lateral motion mechanism (4) comprises a first gear (401) and a second gear (402), the first gear (401) and the second gear (402) being rotatably connected to two sides of the interior of the connection frame (108), the first gear (401) being transmission-connected to the second gear (402) via a chain (403), the support plate (109) being fixedly connected to the outer surface of the chain (403), a second stepping motor (404) being fixedly mounted at a position close to the right side of the top of the connection frame (108), the first gear (401) and the second gear (402) being transmission-connected to the second gear (402) via a chain (403), the support plate (109) being fixedly connected to the outer surface of the chain (403), the second stepping motor (404) being fixedly mounted at a position close to the right side of the top of the connection frame (108), One end of the gear (401) is fixedly connected to the output end of the second stepper motor (404), and baffles (405) are welded at left-right symmetrical positions inside the connection frame (108), and a slot for the chain (403) to pass through is formed on the baffle (405), and a slide groove (406) is formed on the front side of the connection frame (108), and a slider (407) adapted to the slide groove (406) is fixedly connected to the support plate (109), and the slider (407) is slidably connected to the inside of the slide groove (406).

8. The high-precision laser welding machine according to claim 1, characterized in that: The rotating mechanism (5) comprises a driving gear (501), the driving gear (501) being rotatably connected to the front top end of the support plate (109), a transmission gear (502) being fixedly mounted on the outer surface of the rotating cylinder (110), the driving gear (501) being transmission-connected to the transmission gear (502) via a gear conveyor belt (503), and a flipping motor (504) being mounted on the back of the support plate (109), the flipping motor (504) being fixedly mounted on the back of the support plate (109), the output end of which passes through the support plate (109) and is fixedly connected to the middle of the driving gear (501).

9. The high-precision laser welding machine according to claim 1, characterized in that: The longitudinal motion mechanism (6) comprises a transmission screw (601) and a guide rod (602); the transmission screw (601) is rotatably connected to one side of the interior of the rotating cylinder (110); the guide rod (602) is fixedly connected to the other side of the interior of the rotating cylinder (110); the mounting block (111) is threadedly connected to the outer surface of the transmission screw (601), and the mounting block (111) is slidably connected to the outer surface of the guide rod (602); a third stepping motor (603) is mounted on the rotating cylinder (110); an output end of the third stepping motor (603) passes through the side wall of the rotating cylinder (110) and is connected to one end of the transmission screw (601).

10. The high-precision laser welding machine according to claim 1, characterized in that: The detection mechanism (7) comprises a first frame (701), the first frame (701) is welded to the top of the base plate (1), a longitudinal screw rod (702) is rotatably connected inside the first frame (701), the outer surface of the longitudinal screw rod (702) is threadedly connected to a second frame (705), the second frame (705) is slidably connected to a first connecting rod (703), and the first connecting rod (703) is fixedly connected to the inside of the first frame (701), the outer end of the longitudinal screw rod (702) is fixedly connected to the output end of a fourth stepping motor (704), and the fourth stepping motor (704) is installed A fifth stepper motor (708) is fixedly mounted on the second frame (705) on the outside of the first frame (701); a transverse screw rod (706) is fixedly mounted on the output end of the fifth stepper motor (708); a mounting plate (709) is threadedly connected to the transverse screw rod (706); a second connecting rod (707) is also mounted inside the second frame (705); the mounting plate (709) is slidably connected to the second connecting rod (707); an electric lifting rod (710) is arranged on the top of the mounting plate (709); and a detection head (711) is fixedly connected to the output end of the electric lifting rod (710).

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